About: http://webisa.webdatacommons.org/72300835

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	They are welded or bolted closed, and each is surrounded by steel, concrete, lead, or other material to provide leak-tight containment and radiation shielding.
http://www.w3.org/ns/prov#wasQuotedFrom	nrc.gov